109 lines
2.0 KiB
C
109 lines
2.0 KiB
C
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#include <stdlib.h>
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#include <rtthread.h>
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#include <rtdevice.h>
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#include <vbus.h>
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#define BUFLEN 1024
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static char buf[BUFLEN];
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static void _vbus_on_tx_cmp(void *p)
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{
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struct rt_completion *cmp = p;
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rt_completion_done(cmp);
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}
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static rt_size_t _vbus_write_sync(rt_device_t dev, void *buf, rt_size_t len)
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{
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rt_size_t sd;
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struct rt_completion cmp;
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struct rt_vbus_dev_liscfg liscfg;
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rt_completion_init(&cmp);
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liscfg.event = RT_VBUS_EVENT_ID_TX;
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liscfg.listener = _vbus_on_tx_cmp;
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liscfg.ctx = &cmp;
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rt_device_control(dev, VBUS_IOC_LISCFG, &liscfg);
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sd = rt_device_write(dev, 0, buf, len);
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rt_completion_wait(&cmp, RT_WAITING_FOREVER);
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return sd;
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}
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static void _rev_str(char *buf, rt_size_t len)
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{
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char tmp;
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rt_size_t i, mid;
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RT_ASSERT(buf);
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if (!len)
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return;
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mid = len / 2;
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for (i = 0; i < mid; i++)
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{
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tmp = buf[i];
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buf[i] = buf[len - 1 - i];
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buf[len - 1 - i] = tmp;
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}
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}
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static void _test_write(void *devname)
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{
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int i;
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rt_device_t dev;
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dev = rt_device_find(devname);
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if (!dev)
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{
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rt_kprintf("could not find %s\n", devname);
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return;
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}
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again:
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i = rt_device_open(dev, RT_DEVICE_OFLAG_RDWR);
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if (i)
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{
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rt_kprintf("open dev err:%d\n", i);
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return;
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}
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for (i = 0; i < sizeof(buf) - 1;i++)
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{
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int len;
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len = rt_device_read(dev, 0, buf + i, 1);
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if (len != 1 || buf[i] == '\n')
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break;
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}
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buf[i] = '\0';
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rt_kprintf("recv: %s\n", buf);
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/* Don't swap the \n. */
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_rev_str(buf, i - 1);
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/* Don't write the \0. */
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rt_kprintf("write: %s\n", buf);
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_vbus_write_sync(dev, buf, i - 1);
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rt_device_close(dev);
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goto again;
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}
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int vser_echo_init(void)
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{
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rt_thread_t tid;
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tid = rt_thread_create("vecho", _test_write, "vecho",
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1024, 0, 20);
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RT_ASSERT(tid);
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return rt_thread_startup(tid);
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}
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#ifdef RT_USING_COMPONENTS_INIT
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INIT_APP_EXPORT(vser_echo_init);
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#endif
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